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VNH3SP30-E Datasheet(PDF) 21 Page - STMicroelectronics

Part # VNH3SP30-E
Description  Automotive fully integrated H-bridge motor driver
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VNH3SP30-E Datasheet(HTML) 21 Page - STMicroelectronics

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VNH3SP30-E
Application information
33
3.3
Test mode
The PWM pin can be used to test the load connection between two half-bridges. In the Test
mode (Vpwm = -2 V) the internal power MOS gate drivers are disabled. The INA or INB inputs
can be used to turn on the high side A or B, respectively, in order to connect one side of the
load at VCC voltage. The check of the voltage on the other side of the load can be used to
verify the continuity of the load connection. In case of load disconnection, the DIADX/ENX
pin corresponding to the faulty output is pulled down.
Figure 34. Half-bridge configuration
Note:
The VNH3SP30-E can be used as a high power half-bridge driver achieving an On
resistance per leg of 22.5 mΩ.
Figure 35. Multi-motor configuration
Note:
The VNH3SP30-E can easily be designed in multi-motor driving applications such as seat
positioning systems, where only one motor must be driven at a time. The DIAGX/ENX pins
allow the unused half-bridges to be put into high impedance.
M
OUTA
OUTA
OUTB
OUTB
VCC
PWM
DIAGA/ENA
INA
DIAGB/ENB
INB
GNDB
GNDA
GNDB
GNDA
PWM
DIAGA/ENA
INA
DIAGB/ENB
INB
M2
OUTA
OUTA
OUTB
OUTB
VCC
PWM
DIAGA/ENA
INA
DIAGB/ENB
INB
GNDB
GNDA
GNDB
GNDA
PWM
DIAGA/ENA
INA
DIAGB/ENB
INB
M1
M3



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